Screw Removal (3 ) tool for prop holder in P4

[engineerhrr]

I want to replace my snap on props with Master Airscrew M6 nut screw props. What size tool ( hex or torque )
do I need to remove the 3 screws holding the existing mounting? Is it a t6 torque or hex head screw ?

 

[Erised]

1.5mm hex.

 

[engineerhrr]

Thanks, Erised, I will get one on order.